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What is the purpose of integration testing?
To detect software bugs
To ensure maximum functionality
To validate the software's performance
To detect errors in the integration of modules
The correct answer is: To detect errors in the integration of modules
Integration testing is not primarily used to detect software bugs (A) or ensure maximum functionality (B). While these may be potential benefits of integration testing, the main purpose is to identify and detect errors in the integration process of different modules of the software. This helps in ensuring that the different components are working together correctly and identifying any issues that may arise during their integration. Additionally, integration testing is not solely focused on validating the software's performance (C), as it primarily focuses on the communication and interaction between the different components. Therefore, the correct answer is D.